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Glycoside F2

Reference work entry

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Taxonomy: Physicochemical and Pharmacological Properties of Triterpene Glycosides – Glycosides of Aglycones of Ursene Type – Ursolic Acid

Biological source: Tupidanthus calyptratus [1]

C59H96O25: 1204.624

1H NMR (300 MHz, J/Hz, C5D5N): 1.23, 1.18, 1.14, 1.11, 1.04, 0.92, 0.920 (s, CH3 × 7), 5.40 (m, H-12), 3.21 (m, H-3)

α-L-Arap: 4.88 (d, J = 5.0, H-1), 4.52 (m, H-2), 4.2, 4.3 (m, H-3,-4,-5), 3.82 (m, J = 11.0, H-5)

α-L-Rhap: 6.08 (d, J = 1.5, H-1), 4.73 (dd, J = 3.5, H-2), 4.60 (dd, J = 9.5, H-3), 4.2-4.3 (m, H-4), 4.59 (m, H-5), 1.60 (d, J = 6.0, CH3-6)

β-D-Glcp: 6.15 (d, J = 8.0, H-1), 4.0-4.2 (m, H-2,-3)

β-D-Glcp′: 4.35 (d, J = 7.5, H-1), 3.92 (t, J = 8.0, H-2), 4.0–4.02 (m, H-3), 4.35 (t, J = 9.0, H-4), 3.59 (m, H-5)

α-L-Rhap′: 5.80 (d, J = 1.5, H-1), 4.65 (dd, J = 3.5, H-2), 4.52 (m, H-3), 4.30 (t, J = 9.5, H-4), 4.93 (m, H-5), 1.65 (d, J = 6.0, CH3-6) [1]

13 C NMR (62.9 MHz, C 5D 5N): [ 1]

Table 1

C-1

39.0

C-16

24.6

Ara-1

104.2

Glc′-1

104.5

2

26.3

17

48.4

2

76.0...

References

  1. 1.
    V.I. Grishkovets, Chem. Nat. Comp. 35(5), 547 (1999)CrossRefGoogle Scholar

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© Springer Science+Business Media New York 2013

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